Front backspacing?

[trbojo]

I'm looking for a pair of Center Line Convo Pro front runners to match my rears. What is the proper backspacing, and does anybody know a source for these?

 

[charlief1]

Size and width of the rim are needed.

 

[trbojo]

15 x 4

 

[forcefed3.8's]

1 5/8 or 1 3/4. 2 1/4 doesn't look right.

 

[trbojo]

how about bolt circle? 4 1/2"? what size tires has anyone run on these?

 

[turbo nasty]

5 x 4.75 bolt pattern